846 形状記憶合金円筒のベロー成形加工の検討

概要

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This paper deals with a preliminary analysis of forming a new type of seismic isolation element. A shape memory alloy (SMA) pipe having superelasticity and shape memory effect is focused for the seismic isolation material. We consider that we will make a bellows pipe with single-stage of the SMA, which should be formed in the proprietary method. First the transformation behavior of the bellows' shape in the process of bellow-forming work is clarified with FEM analysis. Secondly, the element (SMA of martensite phase) after the process is compressed on FEM simulations, and the load-deflection curve for the seismic isolation characteristics is calculated. Moreover the effects of pipe's thickness and enlargement ratio on flexure strength are demonstrated.
社団法人日本機械学会の論文
2003-08-05